Heuristics : ন্যায়শাস্ত্রগত আবিষ্কারবিদ্যা; ন্যায়শাস্ত্রগত অনুসন্ধানবিদ্যা;
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Appropriate Prepositions
Apology for (কোনো কারনে ক্ষমা চাওয়া): Sajib should ask apology to her of his mistake.
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Run after (পশ্চাদানুসরণ করা): Do not run after money.
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Idioms
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Call in question (সন্দেহ করা): No one can call his honesty in question.
Cut to the quick (মর্মাহত হওয়া): I was cut to the quick by his birds.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
Tooth and nail (তীব্রভাবে): He fought tooth and nail for the sake of country.